Полное доказательство великой теоремы Ферма

The paper contains complete proof of the great Fermat theorem on the basis of Kummer’s arithmetic circle field theory.Приведено полное доказательство великой теоремы Ферма на основе хуммеровской арифметической теории кругового поля

Valorisation of sawdust through the combined microwave-assisted hydrothermal pre-treatment and fermentation using an oleaginous yeast

Oleaginous yeast, cultured on second-generation lignocellulosic resources, has the potential to be a key part of the future energy sector. However, the multiple unit operations necessary to produce concentrated hydrolysates, with a minimum of fermentation inhibitors, limit the applicability to date. In this study, a simple microwave-assisted hydrothermal pre-treatment step of oak or beech sawdust was deployed to produce an oligosaccharide-rich hydrolysate. This was then catabolised by the oleaginous yeast, Metschnikowia pulcherrima, avoiding the need for costly enzymatic or further chemical steps in the processing. Up to 85% of the sawdust’s hemicelluloses could be solubilised under these conditions, and 8 g/L DCW yeast with a 42% lipid content produced. While a number of studies have demonstrated that oleaginous yeasts possess high inhibitor tolerance, using this real lignocellulosic hydrolysate, we demonstrate that lipid production is actually very sensitive to inhibitor and carbon availability, and the optimal system is not the one that gives the highest hydrolysate or cell biomass. Indeed, the yeast was shown to detoxify the inhibitors in the process, but at high inhibitor loading, this leads to very poor lipid production, especially at high furfural levels. These findings clearly highlight the importance of considering multiple variables when real, complex lignocellulosic media are involved, tuning process conditions based on the desired fermentation outcomes

Сверхсветовые сигналы и время в китайской «Книге Перемен»

The superluminal signals allow to get a new interpretation of an ancient Chinese idea about the two kinds of time and to come to a search of a physical base of soothsaying.Сверхсветовые сигналы позволяют по-новому истолковать древнюю китайскую идею о существовании двух видов времени и подойти к поиску физической основы явления прорицания

Complete Proof of Great Fermat Theorem

The paper contains complete proof of the great Fermat theorem on the basis of Kummer’s arithmetic circle field theory